kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: kernel NULL pointer dereference, address: 0000000000000000
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0011) - permissions violation
PGD 80000000780a6067 P4D 80000000780a6067 PUD 754f4067 PMD 7d8008e7 
Oops: Oops: 0011 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 7131 Comm: syz.2.248 Tainted: G             L      syzkaller #0 PREEMPT(full) 
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90004b97988 EFLAGS: 00010287
RAX: 0000000000000ac9 RBX: 0000000000000000 RCX: ffffc9000da6e000
RDX: 0000000000080000 RSI: ffffea0001af82c0 RDI: ffff88807594c700
RBP: ffffea0001af82c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000972f32
R13: ffff88807594c700 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f187b2186c0(0000) GS:ffff888124902000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000769d2000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 filemap_read_folio+0xc8/0x2a0 mm/filemap.c:2496
 do_read_cache_folio+0x266/0x5c0 mm/filemap.c:4096
 freader_get_folio+0x33a/0x930 lib/buildid.c:58
 freader_fetch+0xbd/0x740 lib/buildid.c:101
 __build_id_parse.isra.0+0xdd/0x6c0 lib/buildid.c:289
 do_procmap_query+0xb0e/0x1080 fs/proc/task_mmu.c:733
 procfs_procmap_ioctl+0x9d/0xe0 fs/proc/task_mmu.c:813
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:597 [inline]
 __se_sys_ioctl fs/ioctl.c:583 [inline]
 __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f187a38f7c9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f187b218038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f187a5e5fa0 RCX: 00007f187a38f7c9
RDX: 0000200000000080 RSI: 00000000c0686611 RDI: 0000000000000005
RBP: 00007f187a413f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f187a5e6038 R14: 00007f187a5e5fa0 R15: 00007ffd567d0b98
 </TASK>
Modules linked in:
CR2: 0000000000000000
---[ end trace 0000000000000000 ]---
RIP: 0010:0x0
Code: Unable to access opcode bytes at 0xffffffffffffffd6.
RSP: 0018:ffffc90004b97988 EFLAGS: 00010287
RAX: 0000000000000ac9 RBX: 0000000000000000 RCX: ffffc9000da6e000
RDX: 0000000000080000 RSI: ffffea0001af82c0 RDI: ffff88807594c700
RBP: ffffea0001af82c0 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 1ffff92000972f32
R13: ffff88807594c700 R14: 0000000000000000 R15: dffffc0000000000
FS:  00007f187b2186c0(0000) GS:ffff888124902000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffffffffffffd6 CR3: 00000000769d2000 CR4: 00000000003526f0